|
| 1 | +""" |
| 2 | +Supplies a Python-2.3 Object Craft csv module work-alike to the extent |
| 3 | +needed by Roundup using the Python 2.3 csv module. |
| 4 | +
|
| 5 | +""" |
| 6 | + |
| 7 | +from roundup.i18n import _ |
| 8 | +error = """Sorry, you need a module compatible with the csv module. |
| 9 | +Either upgrade your Python to 2.3 or later, or get and install |
| 10 | +the csv module from: |
| 11 | +http://www.object-craft.com.au/projects/csv/ |
| 12 | +
|
| 13 | +These two csv modules are different but Roundup can use either. |
| 14 | +""" |
| 15 | +try: |
| 16 | + import csv |
| 17 | + try: |
| 18 | + reader = csv.reader |
| 19 | + writer = csv.writer |
| 20 | + excel = csv.excel |
| 21 | + error = '' |
| 22 | + except AttributeError: |
| 23 | + # fake it all up using the Object-Craft CSV module |
| 24 | + class excel: |
| 25 | + pass |
| 26 | + if hasattr(csv, 'parser'): |
| 27 | + error = '' |
| 28 | + def reader(fileobj, dialect=excel): |
| 29 | + # note real readers take an iterable but 2.1 doesn't |
| 30 | + # support iterable access to file objects. |
| 31 | + result = [] |
| 32 | + p = csv.parser(field_sep=dialect.delimiter) |
| 33 | + |
| 34 | + while 1: |
| 35 | + line = fileobj.readline() |
| 36 | + if not line: break |
| 37 | + |
| 38 | + # parse lines until we get a complete entry |
| 39 | + while 1: |
| 40 | + fields = p.parse(line) |
| 41 | + if fields: break |
| 42 | + line = fileobj.readline() |
| 43 | + if not line: |
| 44 | + raise ValueError, "Unexpected EOF during CSV parse" |
| 45 | + result.append(fields) |
| 46 | + return result |
| 47 | + class writer: |
| 48 | + def __init__(self, fileobj, dialect=excel): |
| 49 | + self.fileobj = fileobj |
| 50 | + self.p = csv.parser(field_sep = dialect.delimiter) |
| 51 | + def writerow(self, fields): |
| 52 | + print >>self.fileobj, self.p.join(fields) |
| 53 | + def writerows(self, rows): |
| 54 | + for fields in rows: |
| 55 | + print >>self.fileobj, self.p.join(fields) |
| 56 | + |
| 57 | +except ImportError: |
| 58 | + class excel: |
| 59 | + pass |
| 60 | + |
| 61 | +class colon_separated(excel): |
| 62 | + delimiter = ':' |
| 63 | +class comma_separated(excel): |
| 64 | + delimiter = ',' |
| 65 | + |
| 66 | + |
| 67 | +if __name__ == "__main__": |
| 68 | + f=open('testme.txt', 'r') |
| 69 | + r = reader(f, colon_separated) |
| 70 | + remember = [] |
| 71 | + for record in r: |
| 72 | + print record |
| 73 | + remember.append(record) |
| 74 | + f.close() |
| 75 | + import sys |
| 76 | + w = writer(sys.stdout, colon_separated) |
| 77 | + w.writerows(remember) |
| 78 | + |
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